37. Info taken from Wiki. Your words in the (deleted OP) admiring its sleek design.

"Mossberg claims the Model 500 is the only shotgun to pass the US Army's Mil-Spec 3443E test, "a brutal and unforgiving torture test with 3,000 rounds of full power 12 gauge buckshot". (The updated 3443G specification requires a metal trigger guard, so only the Model 590A1 variants, which have a heavier barrel and use metal trigger groups instead of the standard Model 500's plastic trigger groups, will fit the requirements.)"

Frankly, your gun-porn OP on that other thread was a major turn-off. Feel free to get your jollies off someone else in debating the delights of your latest toy.